Added partial unit tests for host_controller.js. More to come.

remoting/webapp/crd/js/mock_xhr.js

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview A mock version of remoting.Xhr.  Compared to
  * sinon.useMockXhr, this allows unit tests to be written at a higher
  * level, and it eliminates a fair amount of boilerplate involved in
  * making the sinon mocks work with asynchronous calls
  * (cf. gcd_client_unittest.js vs. gcd_client_with_mock_xhr.js for an
@@ skipping 172 matching lines @@
     method, urlPattern, callback, opt_reuse) {
   handlers.push({
     method: method,
     urlPattern: urlPattern,
     callback: callback,
     reuse: !!opt_reuse
   });
 };
 
 /**
- * Installs a 204 (no content) response.  See |setResponseFor| for
+ * Installs an emptresponse.  See |setResponseFor| for
  * more details on how the parameters work.
  *
  * @param {?string} method
  * @param {?string|!RegExp} urlPattern
+ * @param {number=} opt_status
  * @param {boolean=} opt_reuse
  */
-remoting.MockXhr.setEmptyResponseFor = function(method, urlPattern, opt_reuse) {
+remoting.MockXhr.setEmptyResponseFor = function(
+    method, urlPattern, opt_status, opt_reuse) {
   remoting.MockXhr.setResponseFor(
       method, urlPattern, function(/** remoting.MockXhr */ xhr) {
-        xhr.setEmptyResponse(204);
+        xhr.setEmptyResponse(opt_status === undefined ? 204 : opt_status);
       }, opt_reuse);
 };
 
 /**
  * Installs a 200 response with text content.  See |setResponseFor|
  * for more details on how the parameters work.
  *
  * @param {?string} method
  * @param {?string|!RegExp} urlPattern
  * @param {string} content
@@ skipping 86 matching lines @@
 // Can't put put typedefs inside a function :-(
 /**
  * @typedef {{
  *   method:?string,
  *   urlPattern:(?string|RegExp),
  *   callback:function(!remoting.MockXhr):void,
  *   reuse:boolean
  * }}
  */
 remoting.MockXhr.UrlHandler;